Labs_underpass_p.upk Official
Create a backup of the original Labs_Underpass_P.upk to avoid losing the default map.
When using Park_P instead of Underpass, forgetting to rename the file back can cause you to get a 15-min ban if you join a competitive playlist and Beckwith Park appears. Using Underpass reduces this risk. Labs_Underpass_P.upk
Ultimate Guide to Custom Maps in Rocket League: Mastering Labs_Underpass_P.upk Create a backup of the original Labs_Underpass_P
Find your Rocket League map folder, usually located here: Documents\My Games\RocketLeague\TAGame\CookedPCConsole\mods Labs_Underpass_P.upk
This blog post guide helps Rocket League players navigate the complexities of using custom maps via the Labs_Underpass_P.upk method.